Duration of double balloon catheter for patients with prior cesarean: a before and after study.

Background: Previous studies that suggest a shorter time from cervical ripening balloon placement to delivery with shorter total balloon placement time have excluded patients with prior cesarean deliveries.

Objective: To evaluate, in patients with a prior history of cesarean delivery undergoing cervical ripening with a double-balloon catheter, whether planned removal of device after 6 vs 12 hours would result in shorter time to vaginal delivery.

Study Design: A before-and-after study was performed after a practice change occurred November 2020, shortening the planned time of double-balloon catheter placement for cervical ripening from 12 to 6 hours.

Bumble bee responses to climate and landscapes: Investigating habitat associations and species assemblages across geographic regions in the United States of America.

Bumble bees are integral pollinators of native and cultivated plant communities, but species are undergoing significant changes in range and abundance on a global scale. Climate change and land cover alteration are key drivers in pollinator declines; however, limited research has evaluated the cumulative effects of these factors on bumble bee assemblages. This study tests bumble bee assemblage (calculated as richness and abundance) responses to climate and land use by modeling species-specific habitat requirements, and assemblage-level responses across geographic regions.

It is buzziness time: rearing, mating, and overwintering Bombus vosnesenskii (Hymenoptera: Apidae).

Bombus vosnesenskii Radowszkowski, 1862 is one of three bumble bee species commercially available for pollination services in North America; however, little is documented about B. vosnesenskii colony life cycle or the establishment of ex situ rearing, mating, and overwintering practices. In this study, we documented nest success, colony size, and gyne production; recorded the duration of mating events; assessed overwintering survival of mated gynes; and evaluated second-generation nest success for colonies established from low- and high-elevation wild-caught B.